A 150 m long metal wire connects points A and B. The electric potential at point B is 50V less than that at point A. If the conductivity of the metal is 60 xx 10^(6)mho//m then magnitude of the current density in the wire is equal to:

A 150 m long metal wire connects points A and B. The electric potentia

1.	A 150 m long metal wire connects points A and B. The electric potential at point B is 50V less than that at point A. If the conductivity of the metal is 60 xx 10^(6)mho//m then magnitude of the current density in the wire is equal to:
Answer» `11 xx 10^(-4)A//m^(2)` `5.5 xx 10^(-3)A//m^(2)` `4 xx 10^(7)A//m^(2)` `20 xx 10^(6)A//m^(2)` Answer :D

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A 150 m long metal wire connects points A and B. The electric potential at point B is 50V less than that at point A. If the conductivity of the metal is 60 xx 10^(6)mho//m then magnitude of the current density in the wire is equal to:

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